Knowledge Base Repository
In addition to research papers, the Design Society is developing several valuable resources for those interested in the study of design. These include a repository of PhD theses, a library of case studies and transcripts of design activities, and an archive of our newsletters. Please note that these resources are accessible exclusively to Design Society members.
Knee dynamic analysis in the development of above knee prosthesis for alpine skiing
Demšar, Ivan; Supej, Matej; Duhovnik, Jože
Type:
Year:
2013
Editor:
Udo Lindemann, Srinivasan V, Yong Se Kim, Sang Won Lee, John Clarkson, Gaetano Cascini
Author:
Series:
ICED
Institution:
1: University of Ljubljana, Faculty of Mechanical Engineering, Slovenia; 2: University of Ljubljana, Faculty of Sport, Slovenia
Page(s):
089-098
ISBN:
978-1-904670-52-0
ISSN:
2220-4334
Abstract:
The development of biomechanical systems requires detailed knowledge of a natural system. The work includes an analysis of the natural process of the kinematics and dynamics in the knee joint in a laboratory simulation of motion through a ski turn. Measurements and analyses of the results are the foundation for the development of the prosthetic knee for ordinary two-track skiing for above the knee amputees. A dedicated testing facility was built, allowing simultaneous capturing of leg structure kinematics and surface loading rates. Changing additional vertical loads in the waist area, different conditions of performing a ski turn were simulated. Measuring the kinematics and dynamics of a control group of able-bodied skiers show that rotation in the knee joint is below 60°. Longitudinal force in the knee reaches values of up to 1.2 N/kg. Average vertical load in the knee exceeds 10 N/kg. The knee flexing/extension moment reaches values of over 1.5 Nm/kg. The presented laboratory measurements are comparable with those on ski slopes and represent the basis for the development of tailor-made prosthetic knees.
Keywords:
